标题： 迪特里希气体作为暗物质和暗能量的统一模型 显示英文标题

标题： Dieterici gas as a Unified Model for Dark Matter and Dark Energy

摘要： 暗能量在宇宙中的主导地位要求引入一种排斥性引力源，使q0为负数。 暗能量的模型从简单的lambda项到量子势、查普利金气体等。 我们探讨缺失能量密度从DM到DE行为变化的可能性，这种变化可能由背景流体状态方程的变化而不是势的形式来决定。 宇宙加速的问题可以在不必然包含标量场的理论框架内进行讨论。 显示英文摘要

摘要： The dominance of dark energy in the universe has necessitated the introduction of a repulsive gravity source to make q0 negative. The models for dark energy range from a simple lambda-term to quintessence, Chaplygin gas, etc. We look at the possibility of how change of behaviour of missing energy density, from DM to DE, may be determined by the change in the equation of state of a background fluid instead of a form of potential. The question of cosmic acceleration can be discussed within the framework of theories which do not necessarily include scalar fields.